Open Booking API Specifications

[carlfredl]

Let's get a most comprehensive picture of open booking API standards as we look to the next steps for GOFS implementation and expand interoperability across projects.

Please share your knowledge on the latest in this space. More specifics on early implementations may be of particular interest so we can learn from implementors. I'll keep the summary here updated.

Open booking initiatives for demand responsive transportation:

• TOMP has early deployments in several regions of the Netherlands including connecting taxi operators with regional consumer apps. TOMP is designed for interoperability with open standards, including explicitly with GBFS and GOFS.
• TDS has been run as a demonstration project and does appear to be public hosted (yet). In June 2025, MTC in the San Fransisco Bay Area awarded a contract for regional paratransit booking using the specification.
• ONDC is in use by taxi operators in Bengaluru and consumed by Namma Yatri.